CN111565358A - Remote controller positioning method using ultra wide band UWB technology - Google Patents
Remote controller positioning method using ultra wide band UWB technology Download PDFInfo
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- CN111565358A CN111565358A CN202010330491.1A CN202010330491A CN111565358A CN 111565358 A CN111565358 A CN 111565358A CN 202010330491 A CN202010330491 A CN 202010330491A CN 111565358 A CN111565358 A CN 111565358A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/023—Services making use of location information using mutual or relative location information between multiple location based services [LBS] targets or of distance thresholds
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W4/00—Services specially adapted for wireless communication networks; Facilities therefor
- H04W4/02—Services making use of location information
- H04W4/025—Services making use of location information using location based information parameters
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W64/00—Locating users or terminals or network equipment for network management purposes, e.g. mobility management
Abstract
A remote controller positioning method utilizing ultra wide band UWB technology relates to the technical field of remote controller positioning. The method comprises a two-way flight time method, a plane positioning algorithm and a space positioning algorithm, wherein the two-way flight time method is that each module generates an independent timestamp from the start, the plane positioning algorithm is that two positioning modules on the same horizontal line are arranged on a host, the space positioning algorithm is expanded to a three-dimensional space on the basis of the plane positioning algorithm, and three non-collinear positioning modules are arranged on the host. The invention relates to a remote controller positioning method by using ultra-wideband UWB technology, which judges the space position of the remote controller relative to a host by using the ultra-wideband UWB technology and is accurate to centimeter level. On one hand, the remote controller can help a user to find the remote controller, and on the other hand, the host can estimate the relative position relation between the user and the host through the spatial position of the remote controller relative to the host.
Description
Technical Field
The invention relates to the technical field of remote controller positioning, in particular to a remote controller positioning method utilizing ultra wide band UWB technology.
Background
In the prior art, a remote controller locator is formed by adding a transmitter on equipment and adding an acousto-optic sounding device on a remote controller. When a user needs to search for the remote controller, the emitter emits a signal to enable the sound and light generating device on the remote controller to emit sound and light to help the user search for the remote controller. This method does not actually determine the position of the remote controller. Only assist in finding a remote control.
For example, the remote controller positioning system (application publication No. CN 101226679) is also a remote controller positioning system for assisting a user to find a remote controller, and this system requires three wireless access points to be respectively arranged at non-collinear positions in an indoor environment, and is complex in installation and use and single in function.
Disclosure of Invention
The invention aims to provide a remote controller positioning method by using an ultra-wideband UWB technology, aiming at the defects and shortcomings of the prior art, the spatial position of a remote controller relative to a host is judged by using the ultra-wideband UWB technology, and the precision is accurate to centimeter level. One aspect may help the user find the remote control. On the other hand, the host can estimate the relative position relationship between the user and the host through the spatial position of the remote controller relative to the host. According to the position relation of the user and the user, the angle of the display of the equipment is challenged, the generation mode of the sound box is changed, and the best watching and listening experience is provided for the user.
In order to achieve the purpose, the invention adopts the following technical scheme: the method comprises a two-way flight time method, a plane positioning algorithm and a space positioning algorithm, wherein the two-way flight time method is that each module generates an independent timestamp from the start, the plane positioning algorithm is that two positioning modules on the same horizontal line are arranged on a host, the space positioning algorithm is expanded to a three-dimensional space on the basis of the plane positioning algorithm, and three non-collinear positioning modules are arranged on the host.
The bidirectional time-of-flight method connects a module a with a module B, the transmitter of the module a transmits a pulse signal requesting properties at Ta1 on its time stamp, and the module B receives at its own time stamp Tb 1. Module B transmits a signal of responsive nature at time Tb2 and module a receives at its own time stamp Ta 2. Therefore, the flight time of the pulse signal between the two modules can be calculated, and the flight distance S is determined, wherein the flight distance S = Cx [ (Ta2-Ta1) - (Tb2-Tb1) ] (C is the speed of light), and the straight-line distance between the module A and the module B is 1/2S.
The plane positioning algorithm can ensure that the assumption that the module E, the module C and the module D on the remote controller are positioned on the same horizontal plane is basically established by reasonably arranging the positions on the host, a module can be added on the host on occasions needing more accurate positioning, the specific plane positioning algorithm arranges two positioning modules (module C, D) on the same horizontal line, the distances from the module E on the remote controller to the two host modules C, D are calculated to be D1 and D2 respectively, and the module E and the module C, D are assumed to be positioned on the same horizontal plane. The two intersections of the circle with origin at module C at radius D1 and the circle with origin at module D at radius D2 are possible module E locations. Because the host computer is composed of the front side and the back side, the module E on the back side of the host computer can be arranged at the position 2, and the module E is arranged at the position 1.
The spatial localization algorithm described is implemented by arranging three non-collinear localization modules on a host computer, since the positions of the modules on the host computer are fixed and known. The position of the remote controller relative to the host can be calculated by calculating the distance from the module on the remote controller to the three host modules, because the three modules on the host are coplanar, the front side and the back side of the host respectively have a possible position, and because a user is usually positioned on the front side of the host, the position on the back side of the host can be eliminated. The position on the front surface of the host machine is the position of the remote controller. If four non-coplanar positioning modules are arranged on the host, a unique relative position of the remote control with respect to the host can be determined. The specific spatial location algorithm sets two location modules (module C, D) on the same horizontal line, adds a module (module F) which is not collinear with the two modules, and calculates the distances from the module E on the remote controller to the two host computer modules C, D, F as D1, D2 and D3 respectively. The two intersections of the sphere with origin radius D1 at module C and the sphere with origin radius D2 at module D and the sphere with origin radius D3 at module F are possible module E locations. Because the host computer is composed of the front side and the back side, the module E on the back side of the host computer can be arranged at the position 2, and the module E is arranged at the position 1.
The remote controller positioning method utilizing the ultra-wideband UWB technology uses the UWB ranging technology, and can accurately position the remote controller to centimeter level.
The method for positioning the remote controller by using the ultra-wideband UWB technology gets rid of the limitation that the conventional remote controller positioning can only be used for searching the remote controller. By judging the accurate position of the remote controller relative to the host, the host can better provide service for users.
According to the remote controller positioning method using the ultra-wideband UWB technology, the relative position of the remote controller and the host is judged, and the host can judge the position of a user by using the position. In the past, a camera is needed for judging the position of a user, so that higher safety risk is caused, and the privacy of the user is difficult to guarantee.
Furthermore, the host comprises but not limited to a television, a television stand and a sound box.
The working principle of the invention is as follows: a remote controller positioning method using ultra-wideband UWB technology utilizes three methods of a two-way flight time method, a plane positioning algorithm and a space positioning algorithm to carry out accurate position distance positioning on a remote controller, does not need to use carrier waves in a traditional communication system, and transmits data by sending and receiving extremely narrow pulses with nanosecond or nanosecond level or below, so that the remote controller has a GHz-level bandwidth, and UWB has the advantages of insensitivity to channel fading, low power spectral density of transmitted signals, low interception capability, low system complexity, capability of providing centimeter-level positioning accuracy and the like.
After the technical scheme is adopted, the invention has the beneficial effects that: the invention relates to a remote controller positioning method by using ultra-wideband UWB technology, which judges the space position of the remote controller relative to a host by using the ultra-wideband UWB technology and is accurate to centimeter level. On one hand, the remote controller can be searched by a user, on the other hand, the host can estimate the relative position relationship between the user and the host through the spatial position of the remote controller relative to the host, the angle of the display of the equipment is challenged according to the position relationship between the user and the host, the generation mode of the sound box is changed, and the best watching and listening experience is provided for the user.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural view of the two-way time-of-flight method of the present invention;
FIG. 2 is a schematic diagram of a plane location algorithm according to the present invention;
FIG. 3 is a schematic diagram of the spatial localization algorithm of the present invention.
Detailed Description
Referring to fig. 1 to 3, the technical solution adopted by the present embodiment is: the method comprises a two-way flight time method, a plane positioning algorithm and a space positioning algorithm, wherein the two-way flight time method is that each module generates an independent timestamp from the start, the plane positioning algorithm is that two positioning modules on the same horizontal line are arranged on a host, the space positioning algorithm is expanded to a three-dimensional space on the basis of the plane positioning algorithm, and three non-collinear positioning modules are arranged on the host.
Further, the two-way time-of-flight method connects module a to module B, the transmitter of module a transmits a pulse signal of a requested nature at Ta1 on its time stamp, and module B receives at its own time stamp Tb 1. Module B transmits a signal of responsive nature at time Tb2 and module a receives at its own time stamp Ta 2. Therefore, the flight time of the pulse signal between the two modules can be calculated, and the flight distance S is determined, wherein the flight distance S = Cx [ (Ta2-Ta1) - (Tb2-Tb1) ] (C is the speed of light), and the straight-line distance between the module A and the module B is 1/2S.
Furthermore, the plane positioning algorithm can basically ensure that the assumption that the module E, the module C and the module D on the remote controller are positioned on the same horizontal plane by reasonably arranging the positions on the host, a module can be added on the host on occasions needing more accurate positioning, the specific plane positioning algorithm arranges two positioning modules (module C, D) on the same horizontal line, calculates the distances from the module E on the remote controller to the two host modules and D to be D1 and D2 respectively and assumes that the module E and the module C, D are positioned on the same horizontal plane. The two intersections of the circle with origin at module C at radius D1 and the circle with origin at module D at radius D2 are possible module E locations. Because the host computer is composed of the front side and the back side, the module E on the back side of the host computer can be arranged at the position 2, and the module E is arranged at the position 1.
Further, the spatial localization algorithm described locates the modules by arranging three non-collinear modules on the host computer, since the location of the modules on the host computer is fixed and known. The position of the remote controller relative to the host can be calculated by calculating the distance from the module on the remote controller to the three host modules, because the three modules on the host are coplanar, the front side and the back side of the host respectively have a possible position, and because a user is usually positioned on the front side of the host, the position on the back side of the host can be eliminated. The position on the front surface of the host machine is the position of the remote controller. If four non-coplanar positioning modules are arranged on the host, a unique relative position of the remote control with respect to the host can be determined. The specific spatial location algorithm is to set two location modules (module C, D) on the same horizontal line, add a module (module F) not collinear with the two modules, and calculate the distances from the module E on the remote controller to the two host modules C, D, F as D1, D2, and D3, respectively. The two intersections of the sphere with origin radius D1 at module C and the sphere with origin radius D2 at module D and the sphere with origin radius D3 at module F are possible module E locations. Because the host computer is composed of the front side and the back side, the module E on the back side of the host computer can be arranged at the position 2, and the module E is arranged at the position 1.
Furthermore, the remote controller positioning method utilizing the ultra-wideband UWB technology uses the UWB ranging technology, and can accurately position the remote controller to the centimeter level.
Furthermore, the method for positioning the remote controller by using the ultra-wideband UWB technology gets rid of the limitation that the conventional remote controller positioning can only be used for searching the remote controller. By judging the accurate position of the remote controller relative to the host, the host can better provide service for users.
Furthermore, the method for positioning the remote controller by using the ultra-wideband UWB technology judges the relative position of the remote controller and the host, and the host can use the position to judge the position of the user. In the past, a camera is needed for judging the position of a user, so that higher safety risk is caused, and the privacy of the user is difficult to guarantee.
Furthermore, the host comprises but not limited to a television, a television stand and a sound box.
The working principle of the invention is as follows: a remote controller positioning method using ultra-wideband UWB technology utilizes three methods of a two-way flight time method, a plane positioning algorithm and a space positioning algorithm to carry out accurate position distance positioning on a remote controller, does not need to use carrier waves in a traditional communication system, and transmits data by sending and receiving extremely narrow pulses with nanosecond or nanosecond level or below, so that the remote controller has a GHz-level bandwidth, and UWB has the advantages of insensitivity to channel fading, low power spectral density of transmitted signals, low interception capability, low system complexity, capability of providing centimeter-level positioning accuracy and the like.
After the technical scheme is adopted, the invention has the beneficial effects that: the invention relates to a remote controller positioning method by using ultra-wideband UWB technology, which judges the space position of the remote controller relative to a host by using the ultra-wideband UWB technology and is accurate to centimeter level. On one hand, the remote controller can be searched by a user, on the other hand, the host can estimate the relative position relationship between the user and the host through the spatial position of the remote controller relative to the host, the angle of the display of the equipment is challenged according to the position relationship between the user and the host, the generation mode of the sound box is changed, and the best watching and listening experience is provided for the user.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent substitutions made by those skilled in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (6)
1. A remote controller positioning method using ultra wide band UWB technology is characterized in that: the method comprises a two-way flight time method, a plane positioning algorithm and a space positioning algorithm, wherein the two-way flight time method is that each module generates an independent timestamp from the start, the plane positioning algorithm is that two positioning modules on the same horizontal line are arranged on a host, the space positioning algorithm is expanded to a three-dimensional space on the basis of the plane positioning algorithm, and three non-collinear positioning modules are arranged on the host.
2. The method of claim 1, wherein the method further comprises the following steps: the bidirectional flight time method is characterized in that a module A is connected with a module B, a transmitter of the module A transmits a pulse signal with a request property at Ta1 on a time stamp of the module A, the module B receives the pulse signal at a time stamp Tb1 of the module B, the module B transmits a signal with a response property at Tb2, and the module A receives the pulse signal at a time stamp Ta2 of the module B, so that the flight time of the pulse signal between the two modules can be calculated, the flight distance S is determined, the flight distance S = Cx [ (Ta2-Ta1) - (Tb2-Tb1) ] (C is the speed of light), and the linear distance between the module A and the module B is 1/2S.
3. The method of claim 1, wherein the method further comprises the following steps: the plane positioning algorithm can ensure that the assumption that a module E, a module C and a module D on a remote controller are positioned on the same horizontal plane is basically established by reasonably arranging the positions on a host, a module can be added on the host on occasions needing more accurate positioning, the specific plane positioning algorithm arranges two positioning modules (a module C, D) on the same horizontal line, the distances from the module E on the remote controller to two host modules C, D are calculated to be D1 and D2 respectively, the module E and the module C, D are assumed to be positioned on the same horizontal plane, two intersections of a circle with the module C as an origin radius D1 and a circle with the module D as an origin radius D2 are possible module E positions, and the possible module E position 2 on the back of the host is excluded and the possible module E position 1 is arranged on the front and back of the host.
4. The method of claim 1, wherein the method further comprises the following steps: the spatial positioning algorithm can calculate the position of the remote controller relative to the host machine by calculating the distance from the module on the remote controller to the three host machine modules, because the three modules on the host machine are coplanar, the possible positions can be respectively arranged on the front side and the back side of the host machine, because a user is always positioned on the front side of the host machine, the position on the back side of the host machine can be eliminated, the position on the front side of the host machine is the position of the remote controller, and if the four non-coplanar positioning modules are arranged on the host machine, the only relative position of the remote controller relative to the host machine can be determined.
5. The method of claim 1, wherein the method further comprises the following steps: the spatial positioning algorithm is that two positioning modules (modules C, D) are arranged on the same horizontal line, a module (module F) which is not collinear with the two modules is added, and the distances from a module E on a remote controller to two host computer modules C, D, F are calculated to be D1, D2 and D3 respectively; two intersection points of a spherical surface with the module C as the origin radius D1, a spherical surface with the module D as the origin radius D2 and a spherical surface with the module F as the origin radius D3 are possible module E positions; because the host computer is composed of the front side and the back side, the module E on the back side of the host computer can be arranged at the position 2, and the module E is arranged at the position 1.
6. The method of claim 1, wherein the method further comprises the following steps: the remote controller positioning method utilizing the ultra-wideband UWB technology uses the UWB ranging technology, and can accurately position the remote controller to centimeter level.
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| CN202010330491.1A CN111565358A (en) | 2020-04-24 | 2020-04-24 | Remote controller positioning method using ultra wide band UWB technology |
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| CN202010330491.1A CN111565358A (en) | 2020-04-24 | 2020-04-24 | Remote controller positioning method using ultra wide band UWB technology |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113573110A (en) * | 2021-06-23 | 2021-10-29 | 歌尔科技有限公司 | Display control method, device, system and storage medium for display device |
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Application publication date: 20200821 |
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